package org.langqiao.date;

public class CountMonthDays {

	public static void main(String[] args){
		days(2000,2);
	}
	public static int days(int year,int month){
		int days =0;
		if(month!=2){
			switch (month) {
			case 1:
			case 3:
			case 5:
			case 7:
			case 8:
			case 10:
			case 12:days=31;
				break;
			case 4:
			case 6:
			case 9:
			case 11:days=30;
			}
		}
		else{
			//闰年
			if((year%4==0&&year%100!=0)||(year%400==0)){
				days = 29;
			}//平年
			else{
				days = 28;
			}
		}
		System.out.println(days);
		return days;
	}
}
